ClearWater CD-2000 - Page 10

10
Materials
Use Schedule 80 PVC for all plumbing connections whenever possible. Also, it is recommended that unions and
valves are used wherever practical. Ozone rapidly deteriorates a variety of compounds; the following is a list of
materials that may be used . . .
. . . with ozone in gaseous phase (at high concentrations):
Viton Teon
®
Stainless Steel EPDM
Silicon Kynar
®
Hepalon
. . . with ozone in aqueous phase (at low concentrations):
Viton Teon
®
Stainless Steel EPDM
Silicon Kynar
®
Concrete Hepalon
Schedule 40 PVC Schedule 80 PVC
NOTE: Be sure to use good plumbing practices and install unions and isolation valves wherever the situation
dictates, i.e. pump or injector removal, etc. Secure all plumbing with unistrut or similar hardware.
Tubing Installation
1. Install braided tubing from the indicating desiccant chamber on the air dryer to the brass AIR INLET tting
on the bottom of the ozone generator (or the bottom of the electrical interlock box if so equipped). If you
are not using an electrical interlock box, skip Step 2 and go to Step 3.
2. If equipped with the electrical interlock box, continue running the braided tubing from the electrical interlock
box brass AIR OUTLET tting to the brass barb AIR INLET tting on the bottom of the ozone generator.
3. Install the ozone check valve assembly onto the injector. Connect the 1/4” Teon
®
tubing from the Teon
®
OZONE OUT compression tting on the bottom of the ozone generator to the Teon
®
compression t-
ting on the check valve assembly on the injector. Secure by tightening the tting around the 1/4” Teon
®
tubing after insertion. (If equipped with the electrical interlock box, install the 1/4” Teon
®
tubing from the
OZONE OUT tting on the bottom of the ozone generator to the stainless steel solenoid valve located
on the top of the electrical interlock box. Continue running the Teon
®
line from the solenoid valve to the
check valve assembly on the injector.)
Check Valve Selection
The ozone check valve is an important component in preventing damage to the ozone generator. All ClearWater
Tech CD2000 ozone generator is equipped with a Kynar
®
low pressure check valve on the ozone outlet. A second
check valve should be installed on the venturi injector ozone inlet. This check valve should be matched to the
application. A low pressure Kynar
®
check valve is appropriate for applications where the system pressure will not
exceed 40 psi. Higher line or system pressure installations require a stainless steel check valve.
Note: The cracking pressure (the pressure at which the valve opens) of any stainless steel or Kynar
®
check valves
not sourced through ClearWater Tech must not exceed 0.5 lb. (0.33 lb. is recommended.
Installation Procedures (continued)